Spirit level



FIG. 1 is a front elevational view of a spirit level showing my new design, the _rear being a mirror image thereto;

FIG. 2 is a right side elevational view thereof, the left side being a mirror image thereto;

FIG. 3 is a top plan view thereof, the bottom being flat, plain and unornamented;

FIG. 4 is a front elevational view of another embodiment of my new design of FIG. 1, the rear being a mirror image thereto;

FIG. 5 is a right side elevational view of FIG. 4, the left side being a mirror image thereto;

FIG. 6 is a top plan view of FIG. 4, the bottom being flat, plain, and unornamented. 

The ornamental design for a spirit level, as shown and described. 